I recently noticed that my preferred uniform is now locked if I select Male as my character, but it is unlocked if I select female. I'm pretty sure this did not used to be the case and that previously, I could use the uniform on both genders.

I am still able to use my preferred headgear on both characters which is why this is confusing me.

After refreshing the operations 20+ times and searching for the specific challenge to complete for my male character, I could not find it..

I ran into that with one of the uniforms. It was one of the Heavy ones as I recall. I think Federation Heavy. Apparently, for that one they unlock separately. I think that it was the same challenge but they unlocked at different levels within the challenge.

I noticed this too. Pretty silly that there are separate challenges for the same uniform. I guess they ran out of rewards for the challenges. If that was the case, they should've just made both operations unlock the same uniform for both sexes. Maybe you are unlocking the size.

Most uniforms unlock via different operations. The only uniform to unlock for both is the body count/warcry. All other uniforms that need a operation to complete have a different operation for the male and female version.

Yeah I know you have to have the operation active, lol I've just never used a female character and never seen anything indicating which gender your unlocking stuff for (other than heads of course), I'll have to check it out when I get home.

Yes it did thanks, I probably won't be playing as a female character anyway but this is the first time I've heard of this.... so btw do you know what happens if you switch around between genders while the challenge is still active?

Thanks..I'll take a look in to it when I sign online. I always used male characters and had the uniform, then after prestiging, I forgot to customise my next character which was female. I had the uniform unlocked there but when going back to male, it was locked..odd.